Ionic mobilities and diffusion coefficients in the NaNO3+ CsNO3 system at 450°C

Abstract

The ionic mobilities and diffusion coefficients of ²²Na and ¹³⁷Cs have been measured by a paper electrophoresis method in molten mixtures of NaNO₃ and CsNO₃. Also the ionic mobility of the NO^–₃-ion was calculated. At a mole fraction of 0.35 CsNO₃ the mobilities of ²²Na and ¹³⁷Cs are equal. In CsNO₃ the Cs⁺ ion has the higher mobility, in NaNO₃ the Na⁺ ion. Friction co-efficients and diffusion potentials. are calculated.